Dishwashing machine



June 2, 1925. 1,540,492

J. MORTKA DI SHWASHING MACHINE Fil d Dec, 1, 1922 2 Sheets-Sheet 1 1 19 J6 J6 40 0 a; m

June 2, 1925. 1,540,492

J. MORTKA DI SHWASHING MACHINE Filed D c. 1, 1922 2 Sheets-Shea}; 2

Patented June 2, 1925.

UNITED STATES JOHAN MORTKA, OF'POUGHK'EEPSIE, NEW YORK.

DISHWASHIN G MACHINE.

Application filed December 1, 1922. Serial No. 604,125.

To all whom it may concern:

Be it known that I, JOHAN MoRTKA, a citizen of Poland, residing at Poughkeepsie, in the county of Dutchess and State of New York, have invented certain new and useful Improvements in Dishwashing Machines, of which the following is a specification.

This invention relates to a dishwash ng machine, and it has for an object to prov de a simple and'efiiciently operating machlne for this purpose. For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in wh ch the various novel features of the lnvention are more particularly set forth.

Fig. 1 of the drawings is a plan v ew of a dish washing machine constructed according to my invention.

Fig. 2 is a longitudmal vertical sectlon on the line 2--2 of Fig. 1.

Fig. 3 is a transverse vertical sectional view taken on the line 3-3 of Fig. 2.

Fig. 4 is a like view taken on the line 4-4 of Fig. 2.

Fig. 5 is an enlarged fragmentary transverse sectional view taken on the line 55 of Fig. 2.

Fig. 6 is a fragmentary longitudmal sec tional view taken on the line 66 of Fig. 1.

Referring now to the drawings my im-,

proved dish washing machine comprises an elongated frame 10 at one end of wh1c h 1s a tank 11 which is of slightly less height than the frame and which contains the cleaning liquid. Under this tank is a gas burner 12 for heating the liquid therein. Extending through the lower portion of the tank 11, transversely with respect to the frame 10, is a shaft 14 which is suitably journaled in the side walls of the tank 11, while a second transverse shaft 15 is supported by an arched structure 16 mounted on the to of the tank.

Upon t e respective shafts 14 and 15 are mounted pairs of sprocket wheels .16 and 17 over which are looped chains 18. Fixed to these chains 18 are spring gripper 'aws 19 which co-operate with .pins 20 also ed to the chains in gripping the plates to bewashed, a number of the latter being indicated by the letter P.

The bottom shaft 14 is intermittently r0- tated by a Geneva movement comprising a slotted wheel 24 fixed thereto engaged by a pin wheel 25 to which is co-axially fixed a bevel ear 26 meshing with a second bevel gear 2? on one end of a longitudinal shaft 28 driven from an electric motor 29, (set on a platform 10' in the lower part of the frame) by means of a gear 30 on the shaft meshing with a pinion 31 on the motor shaft.

The intermittent drive'for shaft 14 is so arranged as to advance the chains 18 at each step a distance corresponding to the distance between the plates carried thereby, and to bring the chains to rest with a plate in position to be engaged by a horizontal carrier. This horizontal carrier comprises an endless apron 35 looped over a pair of rollers 36 one, of which is supported by the part 16. and the other on. top of the frame 10 a short distance from the end thereof. Upon this apron 35 are pairs of suitably s aced pins 37 which are adaptedto engage-behind the pgatgs to push them off the chain grippers The plates, when acted on by the ins 37 enter grooves on the inner faces o a pair of guide bars 46 extending along the top'of the frame 10. The lates are carried only a fractional part of t eir travel by the apron 35, being carried the remaining distance by a pair of endless belts 47 being looped at opposite ends over pulleys 48, 49 carried by transverse shafts 50, 51 and having their upper reaches on a level with the lower reach of the apron 35, these belts carrying pins 52 adapted to engage the plates to push the latter along the guides 46. To drive the apron 35 one of the rollers 36, which is located directly above shaft 50, has fixed coaxially thereto a spur gear 53 engaging a like gear 54 on shaft 50, a bevel gear 39 is fixed on the shaft 50 and meshes with a like gear 40 on one end of a second longi-' tudinal shaft 41 driven from the shaft 28 by means of a sprocket chain 42 looped over shown in detail Y in Fig. 5; These devices comprise a pair of alined hollow vertical shafts and 61 to the respective lower and upper ends whereof are fixed the horizontal sprinkler heads 62 and 63 having sprinkler openings 64 therein and having bristles 64 thereon. Water is supplied to these sprinkler heads 62, 63 through branches 65 from a pipe 66, these branches communicating with chambers 67 in the shaft bearings 68, which chambers are in communication with the interiors of the shafts 60, 61 through apertures 69 in the shafts. The sprinkler heads ($2, 63 are rotated in opposite directions by means of bevel gears 70, 71 fixed on the shafts 60, 61 and meshing with like gears 72, 73 on a pair of counter-shafts 74, 75. The lower one, 75, of these counter-shafts has a second bevel gear 76 thereon meshing with a like gear 77 on the. upper end of a vertical shaft 78 on whose lower end is a bevel gear 79 meshing with a like gear 80 on the longitudinal shaft 28. The two countershafts 74, 75 are driven in unison by a sprocket chain 81 looped over suitable sprocket wheels thereon.

The plates next pass under a band brush 85 looped over rollers 86 mounted on the frame 10. These rollers have co-axially fixed thereto sprocket wheels 87 with which a sprocket chain 88 is engaged, this chain being driven by a second sprocket wheel mounted on the countershaft 74.

The plates then pass between a second pair of sprinkler elements such as shown in Fig.- 5 and which need not therefore be described in detail. The plates then finally pass over a band brush 93 mounted on rollers 94 one of which is fixed on the shaft 51 before mentioned. The shaft 51 has fixed thereto a bevel gear 95 meshing with a second bevel gear 96 on the shaft 41. The plates finally passing from the guides 46 onto a table element 97 from which they may be removed by hand. The various brushes and sprinkler elements just described are located in or above a shallow pan 98 extending substantially the length of the frame 10 and which receives the discharged water. This pan has a discharge pipe 99 controlled by a valve 100.

It is believed that the manner of operation and use of my improved dish washing machine will be readily understood from the above description. The plates to be washed are engaged with the grippers 19. 20 and are carried dowinvard through the liquid in tank 11 and then upward, being successively pushed into the guides 46 by the pins 37 on the apron 35. The plates are carried along the guides 46 by the pins 52 on the belts 47 into engagen'lent with the various cleaning devices by means-of which the plates are thoroughly cleaned.

Having thus described my invention what I claim as new and desire to protect by Letters Patent of the United States is as follows:

1. In a dishwashing machine, a tank,'

adapted to contain a cleaning liquid. a carrier adapted to pass the dishes through the liquid in said tank, a traveling brush adapted to act on the dishes after passing through said tank, and a carrier for bringing the dishes into engagement with the said brush, the first carrier being intermittently driven and the second carrier continuously driven.

2. In a dishwashing machine, a tank adapted to contain a cleaning liquid, a carrier adapted to pass the dishes through said tank, and cleaning devices adapted to act successively on the dishes consisting of band brushes and rotary sprinkler heads ano means for moving the dishes from the said carrier to a position to be engaged by the said cleaning devices.

3. In a dishwashing machine, a tank adapted to contain a cleaning liquid, an endless conveyor provided with frictional dish gripping means dipping into said tank a pair of horizontal guide members extending away from said tank, a second endless conveyor adapted to pass the dishes from the first conveyor onto said guide elements, and a third conveyor adapted to move the dishes along said guide elements, and cleaning devices adapted to engage the dishes when moving along said guide elements.

In testimony whereof I have aiiixed my signature.

J OHAN MORTKA. 

